Finding the Fourth Proportional to 105,100.53, 157,646.39 and 48,921.32

Step by Step Solution

1. Step 1: Write the proportion equation
   105,100.53 : 157,646.39 = 48,921.32 : x
2. Step 2: Convert to fraction form
   105,100.53/157,646.39 = 48,921.32/x
3. Step 3: Cross multiply
   105,100.53x = 157,646.39 × 48,921.32
4. Step 4: Simplify right side
   105,100.53x = 7,712,268,459.20
5. Step 5: Solve for x
   x = 7,712,268,459.20/105,100.53
6. Step 6: Final answer
   x = 73,379.92